Glasses.



H. H. STYLL. GLASSES.

APPLICATION FILED DEC. I. |912.

1, 165,036. Patented Dec. 21, 1915.

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Umso sCeATas PATENT OFFICE.

.HARRY H. srYLL, OESOUTHBBIDGE, MASSACHUSETTS.

GLASSES.

To all whom it may concern.'

Beitvknown that I, Hanni' IL-STYLL, a

eitizenfof rthe United States, residngat Southbridge., in the county oflVorcester and State of Massachusetts, have .invented certainnew-'and.susefulc Im )rovements in Glasses, of which the .following is aspec1- fication. t

Myinvention relates to*improvements 1n glasses and has. particular.referenceto that form of eyeglasses.inwhich:pivoted spring actuatednoselguards-are:employed.

The leading object of my invention is the retaining the.: various partsin position inV a neat. and satisfactorymanner.

Other ob]ectsl amhadvantages of my.im. proved construction ofeyeglasses'should-be.

readily appare-nt hyaeference to the follow- 1 ing=des`cription takenvinconnection with the accompanyingdrawings, andxit` will be un.- derstoodthat Irma'y makeany modifications in-thes'pecitic details ofconstruction shown and described \\ithin thc scope. of the 'upfexceeding the spirit ofany invention.

Figure I represents a view of a fingerpieceI mounting embodying one formof my invention. Fig.- II represents a fragmentary front plan view otthe spring structure shown in Fig.`I but illustrating a slightlydiflercnt form of pad. Fig. III represents a fragmentarv perspectiveview` of one form of my mounting with the parts `in disassembledrelation. Fie'. IV represents a plan view` ofthe blank fromwhichmyimproved spring may he formed. Fig. V rcprcsents a plan of the springformed from said blank. Fi". VI represents a cross section of thewidened portion of my spring. Fig. VII represents a slightly modifiedform of cross section: and Fig. VIII represents another modified crosssection.

In thedrawings, in which similar characters of reference are employedthroughout to denote correspondingviews, the numeral 1; denotes thebridge of 'a pair of glasses,

Specification of Letters Patent.

' pcnded: claims without'l depart-ing from orv Patented Dec. 21, 1915.

Application tiled December 7, 1912. Serial No. 735,419.

said bridge bearing at its ends the clips 2 in which arc mounted thelenses 3. rl`he bridge is preferably` formed adjacent the clips with theseat-portions 4. on which are pivotallymounted the guard arms 5. Thepivot hearings for the guard arms are preferably the members (i whichhave a shoulder T bearing against the seat I and have a flange portionv81 to rest on the upper face of the lever. 5 and prevent weavingmovement thereof. In certain of the forms of my invention I have shownthis Vhearing and washer member as having a securing screw passingdownward therethrough, while in other forms I have shown the same ashaving depending therefrom the portion 9 fittmg into a recess 10 1n thehridgeand having the screw l1 engaging the under face of the bridge and'1n threaded engagement with the depending portion 9 to securely fastenthe device in position. i

By reference to Figs. IV to VIII lnclusive, it will-be seen that Ipreferably form my spring from a piece et round stock 12 which has theCentral portion thereof 1B reduced in thickness and correspondinglywidened, this reduction 'forming for example the cross section M shownin Fig. VI. and the cross section .l5-shown inFig. VII. or the crossscetion.1(` shown in Fig. VIII. It will be understood` however, that Ido not wish to limit myself to these particular cross sections but thatI desire merely to so reduce the thickness of the material that the samemaybe satisfactorily wound in a flat spiral rather than in a coil` ashas hitherto been the practice with springs formed from round stock. Itis to he noted that I leave one or both ends of the material unreduced,providing, as shown in Fig. VIII,- the portion 17 at one end and theportion 1S at the other, which portions being of round stock can bereadily bent in any desired direction and to this extent ohviates theobjections heretofore presentl in. the only forms of springs which couldbe wound in a flat spiral in that the flat material of the springs couldonly be hent transversely and when hent transversely, on account ot thethickness of the material, had a great tendency to break the springs.thus proving unsatisfactory.

In that form of my invention shown in Figs. LII and III, I employ ablank substantially as shown in Fig. VI and have the pivot bearingmember secured in place by the'shouldervlO of the screw 90 which passesdownward through the bearing, said screw having at its upper end thehead 21 formed with a notch or plurality of notches 2Q. It will beunderstood that while in this figure I have shown the pivot bearing forthe lever and the locking screw as both disposed on the same side of thebridge that if desired they could be disposed on" opposite sides of thebridge and the spring on one sideof the bridge, the lever on the other,or in place of employing the particulartype of screw and pivot bearingmember shown in this-Iigure,"I-imiv with equal facility, make use of anyother desired construction of pivot member.

In use, as will be most clearly understood by reference to Fig. III, theportion 13 of my spring is wound in a llat spiral while the pivot. screwor portion projecting above the flange S is disposed in the center ofthe spiral and serves to retain the saine against lateral displacement,the head .21 resting on top of the inner convolution to lock the springagainst accidental upward movement. If desired, however, in place ofhaving this head, or in addition thereto, I may pass the end 1S of thespring under the strap portion of the clip, a recess Zal being formed insaid strap portion-to hold the end of the spring and prevent upwardmovement of thespring relative to the remainder of the mountinff. Asshown in the drawings, the portion 18 of the spring projects upwardlthrough the notch -Q'Z in the head 21 and is laterally bent to engagethe lens clip. On account of the resiliency of the spring as the member20`is screwed into place the portion 18 will yield outwardly ut willspring inward into locking engagement with one of the notches 22, whenthe same is brought into alinement with the spring, thus tending to lockthe. pivot against any possible accidental loosening. 'lhe rcstin of theportion 18 against the clip, it wil? be understood, secures this and ofthe sprin against rotation while lateral bending of tie portion 18 willserve to vary the position of the inner end of the spiral andconsequently to increase or decrease the tension of the spring as mayprove advan` tagcous. The outer end 17 of the spring isreferably tiedaround the lever arm and) the excess cut off.

From the foregoing description taken in connection with the accompanyingdrawings, the construction and use of my irnprovcd glasses should bereadily understood, and it will be seen that I have provided a novel,inconspicuous, elicient and desirable spring, which may be readilyapplied to a mounting and whose ends are each of substantially the samediameter in their two principal meridians, whereby they may be readilyadjusted by bending in any desired direction. I

1. In an ophthalmic mounting, the combination of guard levers pivoted onthe mounting, actuating springs for the guard levers,'said springscomprising a central portion coiled in a. flat spiral around the pivots,and a reduced pliable inner end bent out across the coil to engagementwith the mounting. i

2. A spring for actuating the guard levers of an ophthalmic. mounting,comprising a central portion wound in a flat spiral, a reduced pliableinner end bent out across the coil for engagement with the mounting, anda reduced pliable outer end for engagement with the guard levers.

3. A spring for actuating the guard levers of an ophthalmic mounting,comprising a central portion coiled in a lat spiral, and a reduced roundpliable inner end bent out across the coil for engagement with the guardlevers.

4. In an ophthalmic,mounting the combination of guard levers pivoted onthe mounting, actuating springs for tho guard levers, said springscomprising a central portion coiled in a flat spiral around the pivots,and a reduced pliable inner end bent. out across the coil for engagementwith the mounting and a cover on the pivot over the spring having arecess for the end of the spring.

In testimony whereof I allix my signature in presence of two witnesses.

HARRY H. STYLL.

Witnesses:

H. K. PARSONS, F. E. Connnnn.

Copies of this patent may be obtained for lve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

